270 Miracles Ahead! 



through with no danger of burning. Bread can be baked with- 

 out a crust, and a large piece of meat can be roasted as quickly 

 as a small one. Since the heat is concentrated in the food, roast- 

 ers and pans stay comparatively cool and the danger of burns 

 is eliminated. 



This matter of food brings up the subject of teeth, and 

 teeth bring up the point that you may not have to worry 

 about going to a dentist in the future world of miracles. 

 Research has established the fact that fluorine tends to pre- 

 vent tooth decay. It would be possible to add the small 

 amount required to the city's drinking-water supply. 



The Vortex Gun 



Are you smoking a cigarette now? Did you just blow a 

 smoke ring? These questions serve to introduce a strange 

 device called the vortex gun, which has aroused the interest 

 of military men today and will amaze you by its feats in the 

 future. 



The vortex gun consists of a metal drum with a round open- 

 ing on one side and a rubber diaphragm on the other. Demon- 

 strating this device, Dr. Phillips Thomas, research engineer 

 of the Westinghouse Electric & Manufacturing Company, 

 sighted it at a row of candles about ten feet away, and then 

 tapped the back of the drum with a rubber hammer. One of 

 the candles was snuffed out instantly. He pointed the "gun" 

 at a gong, and tapped the drum. The gong rang. 



"These seemingly miraculous feats were accomplished by 

 an invisible ring of air, a smoke ring without smoke, shot from 

 the aperture by the force with which Dr. Thomas struck 

 the back of the drum," explained Popular Science, August, 

 1942. Designed on the basis of elaborate mathematical cal- 

 culations by Westinghouse scientists, this device embodies 

 the first practical application of the well-known principle of 



